mysql insert identity value

First, backgroundThe ID field in table A in the SQL Server database is defined as: [ID] [int] IDENTITY, as the data grows, the ID value is close to 2147483647 (the value range for int is:-2 147 483 648 to 2 147 483 647). , although the old data has

[DB] [MySql] about getting the value of the auto-increment field and @ IDENTITY and concurrency issues Anyone who just switched from Oracle to MySql will be confused that MySql does not have Sequence in Oracle. MySql does not have Sequence. How can

For those who have just turned to MySQL from Oracle, there is no confusion in MySQL for sequence in Oracle. MySQL does not have sequence, then MySQL's primary key in what way to achieve the best?There are several main ways:1. The self-increment

For those who have just turned to MySQL from Oracle, there is no confusion in MySQL for sequence in Oracle. MySQL does not have sequence, then MySQL's primary key in what way to achieve the best?There are several main ways to do this:1. The

In previous versions of Oracle 12C, if you wanted to achieve column growth, you would need to implement a sequence + trigger, and then 12C ORACLE introduced the Identity columns new feature, enabling the column to grow, and Mysql,sql server-like

MySQL Optimization-Delete Insert update and mysql optimization insert update Reprinted please indicate the source: http://blog.csdn.net/l1028386804/article/details/46581769 Insert Insert multi-row query results into the table Syntax INSERT INTO

Comparison with MSSQL to learn about MYSQL (8) -- insert, update, delete, and mssqlmysql Similarly, it will only explain the difference between SQL Server and SQL Server. Insert Insert multi-row query results into the table Syntax INSERT INTO

#标识列/* is also known as the self-growth column meaning: You can not manually insert the value, the system provides the default sequence value characteristics: 1, the identity column must be combined with the primary key? Not necessarily, but the

18.2.1 MySQL server has gone away errors related to Lost connection to server during query. The most common cause of the MySQL server has gone away error is that the server times out and closes the connection. By default, if nothing happens, the

This article, "My MySQL Learning Experience (eight)" will explain MySQL insert, UPDATE, and DELETE statementsSimilarly, it will only explain the different parts of SQL Server.InsertInserting multiple rows of query results into a tableGrammarINSERT